:root {
  --color-primary: #e8618c;
  --color-primary-dark: #c94a74;
  --color-primary-light: #f7c6d9;
  --color-primary-soft: #fde7ef;
  --color-accent: #fff3d6;
  --color-accent-2: #eaf4fb;
  --color-text: #2b2330;
  --color-text-soft: #5c5468;
  --color-text-muted: #8a8395;
  --color-bg: #fffafc;
  --color-bg-alt: #fdf2f6;
  --color-surface: #ffffff;
  --color-surface-glass: rgba(255, 255, 255, 0.72);
  --color-border: rgba(232, 97, 140, 0.16);
  --color-border-soft: rgba(43, 35, 48, 0.08);
  --shadow-sm: 0 2px 8px rgba(201, 74, 116, 0.08);
  --shadow-md: 0 8px 28px rgba(201, 74, 116, 0.12);
  --shadow-lg: 0 18px 48px rgba(201, 74, 116, 0.18);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;
  --gradient-hero: linear-gradient(135deg, #fde7ef 0%, #fbd9e6 38%, #f7c6d9 68%, #f3d9e8 100%);
  --gradient-primary: linear-gradient(135deg, #e8618c 0%, #d94f7f 55%, #c94a74 100%);
  --gradient-soft: linear-gradient(135deg, #fffafc 0%, #fdf2f6 100%);
  --gradient-warm: linear-gradient(135deg, #fff3d6 0%, #fde7ef 100%);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --header-height: 72px;
  --container-max: 1200px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

html.dark-mode {
  --color-primary: #f07fa4;
  --color-primary-dark: #e8618c;
  --color-primary-light: #6d3a52;
  --color-primary-soft: #3a2430;
  --color-accent: #4a3f2e;
  --color-accent-2: #24333f;
  --color-text: #f3edf5;
  --color-text-soft: #c9bfd1;
  --color-text-muted: #9a90a6;
  --color-bg: #17121b;
  --color-bg-alt: #1e1723;
  --color-surface: #241c2a;
  --color-surface-glass: rgba(36, 28, 42, 0.72);
  --color-border: rgba(240, 127, 164, 0.22);
  --color-border-soft: rgba(255, 255, 255, 0.08);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.5);
  --gradient-hero: linear-gradient(135deg, #3a1f2e 0%, #4a2438 40%, #5a2b44 70%, #2e1a28 100%);
  --gradient-primary: linear-gradient(135deg, #f07fa4 0%, #e8618c 55%, #d94f7f 100%);
  --gradient-soft: linear-gradient(135deg, #1e1723 0%, #241c2a 100%);
  --gradient-warm: linear-gradient(135deg, #3a2f22 0%, #3a2430 100%);
}

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  background-image: radial-gradient(circle at 12% 0%, rgba(232, 97, 140, 0.07) 0%, transparent 45%),
    radial-gradient(circle at 88% 8%, rgba(255, 243, 214, 0.35) 0%, transparent 40%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

a {
  color: var(--color-primary-dark);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

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

h1 { font-size: clamp(1.75rem, 3.4vw, 2.6rem); }
h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); }
h3 { font-size: clamp(1.12rem, 1.9vw, 1.4rem); }

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

ul, ol {
  margin: 0 0 1em;
  padding-left: 1.4em;
}

li {
  color: var(--color-text-soft);
  margin-bottom: 0.4em;
}

blockquote {
  margin: 0 0 1.2em;
  padding: 1.2em 1.4em;
  background: var(--color-surface-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

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

time {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.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;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 9999;
  padding: 12px 22px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-pill);
  font-weight: 600;
  box-shadow: var(--shadow-md);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 16px;
  color: #fff;
}

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-surface-glass);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--color-border-soft);
  transition: box-shadow var(--transition-base), background-color var(--transition-base);
}

.site-header.is-sticky {
  box-shadow: var(--shadow-md);
  background: var(--color-surface-glass);
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-logo {
  display: inline-flex;
  filter: drop-shadow(0 4px 10px rgba(232, 97, 140, 0.25));
  transition: transform var(--transition-base);
}

.brand:hover .brand-logo {
  transform: rotate(-8deg) scale(1.06);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-size: 1.18rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.brand-sub {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
}

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

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}

.main-nav ul::-webkit-scrollbar {
  display: none;
}

.main-nav li {
  margin: 0;
  flex-shrink: 0;
}

.main-nav a {
  display: inline-block;
  padding: 8px 13px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-soft);
  border-radius: var(--radius-pill);
  white-space: nowrap;
  transition: color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
}

.main-nav a:hover {
  color: var(--color-primary-dark);
  background: var(--color-primary-soft);
  transform: translateY(-1px);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.site-search {
  display: flex;
  align-items: center;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-pill);
  padding: 4px 4px 4px 16px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.site-search:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(232, 97, 140, 0.14);
}

.site-search input {
  border: 0;
  background: transparent;
  font-family: inherit;
  font-size: 0.86rem;
  color: var(--color-text);
  width: 150px;
  padding: 6px 0;
  outline: none;
}

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

.site-search button {
  border: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: #fff;
  background: var(--gradient-primary);
  padding: 7px 16px;
  border-radius: var(--radius-pill);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), filter var(--transition-fast);
}

.site-search button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(232, 97, 140, 0.35);
  filter: brightness(1.05);
}

.theme-toggle,
.menu-toggle {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-soft);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle:hover,
.menu-toggle:hover {
  color: var(--color-primary-dark);
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
}

.mobile-menu {
  display: none;
  border-top: 1px solid var(--color-border-soft);
  background: var(--color-surface);
  padding: 12px 20px 20px;
  animation: slideDown 0.3s ease;
}

.mobile-menu[hidden] {
  display: none;
}

.mobile-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.mobile-menu li {
  margin: 0;
}

.mobile-menu a {
  display: block;
  padding: 10px 14px;
  font-size: 0.9rem;
  color: var(--color-text-soft);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.mobile-menu a:hover {
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============ Breadcrumb ============ */
.breadcrumb {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 18px 24px 0;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.84rem;
}

.breadcrumb li {
  margin: 0;
  color: var(--color-text-muted);
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--color-text-muted);
  opacity: 0.6;
}

.breadcrumb a {
  color: var(--color-text-soft);
}

.breadcrumb a:hover {
  color: var(--color-primary-dark);
}

/* ============ Main / Sections ============ */
main {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px 60px;
}

main > section {
  margin: 40px 0;
  padding: 36px clamp(20px, 3.5vw, 44px);
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--transition-slow), transform var(--transition-slow), box-shadow var(--transition-base), border-color var(--transition-base);
}

main > section.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

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

main > section > h2 {
  position: relative;
  padding-bottom: 14px;
  margin-bottom: 22px;
}

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

main > section h3 {
  margin-top: 1.6em;
  color: var(--color-text);
}

main > section h3:first-of-type {
  margin-top: 0.4em;
}

/* ============ Hero ============ */
.hero {
  position: relative;
  margin: 28px 0 40px;
  padding: 0;
  background: var(--gradient-hero);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  align-items: stretch;
  border: 1px solid var(--color-border);
  opacity: 1;
  transform: none;
}

main > .hero {
  opacity: 1;
  transform: none;
  padding: 0;
}

.hero-slider {
  position: relative;
  min-height: 380px;
  overflow: hidden;
  background: var(--color-primary-soft);
}

.hero-slider .slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(1.04);
  transition: opacity 0.9s ease, transform 1.2s ease;
  pointer-events: none;
}

.hero-slider .slide svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-slider .slide.slide-active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.slider-controls {
  position: absolute;
  right: 18px;
  bottom: 18px;
  z-index: 3;
  display: flex;
  gap: 8px;
}

.slider-controls button {
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--color-primary-dark);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.slider-controls button:hover {
  background: #fff;
  color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.hero-content {
  padding: clamp(28px, 4vw, 48px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--color-surface-glass);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
}

.hero-content h1 {
  margin-bottom: 0.5em;
  background: linear-gradient(120deg, var(--color-text) 0%, var(--color-primary-dark) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

html.dark-mode .hero-content h1 {
  background: linear-gradient(120deg, #fff 0%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 0.98rem;
  color: var(--color-text-soft);
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 8px 0 26px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 30px;
  font-size: 0.94rem;
  font-weight: 700;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  color: #fff;
  background: var(--gradient-primary);
  box-shadow: 0 8px 22px rgba(232, 97, 140, 0.32);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(232, 97, 140, 0.45);
}

.btn-secondary {
  color: var(--color-primary-dark);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
}

.btn-secondary:hover {
  color: var(--color-primary-dark);
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  transform: translateY(-3px);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--color-border);
}

.hero-stats > div {
  text-align: center;
}

.hero-stats dt {
  font-size: 0.74rem;
  color: var(--color-text-muted);
  margin-bottom: 2px;
  letter-spacing: 0.03em;
}

.hero-stats dd {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}

.hero-stats .count {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

/* ============ Anchor nav ============ */
.anchor-nav {
  position: sticky;
  top: calc(var(--header-height) + 8px);
  z-index: 50;
  margin: 0 0 8px;
  padding: 10px;
  background: var(--color-surface-glass);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
  scrollbar-width: none;
}

.anchor-nav::-webkit-scrollbar {
  display: none;
}

.anchor-nav ul {
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
  flex-wrap: nowrap;
}

.anchor-nav li {
  margin: 0;
  flex-shrink: 0;
}

.anchor-nav a {
  display: inline-block;
  padding: 7px 15px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-text-soft);
  border-radius: var(--radius-pill);
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.anchor-nav a:hover {
  color: #fff;
  background: var(--gradient-primary);
  box-shadow: 0 4px 12px rgba(232, 97, 140, 0.3);
}

/* ============ FAQ ============ */
.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  padding: 0;
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
}

.faq-list details:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.faq-list details[open] {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
  background: var(--color-surface);
}

.faq-list summary {
  cursor: pointer;
  padding: 18px 52px 18px 22px;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--color-text);
  position: relative;
  list-style: none;
  transition: color var(--transition-fast);
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-primary);
  transition: transform var(--transition-base);
}

.faq-list details[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
}

.faq-list summary:hover {
  color: var(--color-primary-dark);
}

.faq-list details > p {
  padding: 0 22px 20px;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--color-text-soft);
  animation: fadeIn 0.35s ease;
}

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

/* ============ Articles / News ============ */
main > section article {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  margin-bottom: 16px;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base), background-color var(--transition-base);
}

main > section article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
  background: var(--color-surface);
}

main > section article h3 {
  margin-top: 0;
  font-size: 1.08rem;
}

main > section article h3 a,
main > section article a {
  color: var(--color-primary-dark);
  font-weight: 600;
}

main > section article a:hover {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============ Contact / Lists ============ */
main > section ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 8px;
}

main > section ul li {
  position: relative;
  padding-left: 24px;
  font-size: 0.94rem;
}

main > section ul li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.75;
}

#contact ul {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

#sitemap ul,
#links ul {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

#sitemap a,
#links a {
  font-weight: 500;
  color: var(--color-text-soft);
}

#sitemap a:hover,
#links a:hover {
  color: var(--color-primary-dark);
}

/* ============ Footer ============ */
.site-footer {
  margin-top: 60px;
  background: var(--gradient-soft);
  border-top: 1px solid var(--color-border-soft);
  padding: 56px 24px 32px;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1.4fr;
  gap: 40px;
  align-items: start;
}

.footer-brand p {
  margin: 0 0 6px;
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

.footer-brand p strong {
  font-size: 1.1rem;
  color: var(--color-text);
}

.footer-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.footer-nav li {
  margin: 0;
}

.footer-nav a {
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

.footer-nav a:hover {
  color: var(--color-primary-dark);
}

.footer-legal h2 {
  font-size: 0.92rem;
  margin: 0 0 6px;
  color: var(--color-text);
}

.footer-legal p {
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin: 0 0 14px;
}

.footer-legal .copyright {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border-soft);
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ============ Back to top ============ */
.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 900;
  padding: 12px 20px;
  font-family: inherit;
  font-size: 0.84rem;
  font-weight: 600;
  color: #fff;
  background: var(--gradient-primary);
  border: 0;
  border-radius: var(--radius-pill);
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(232, 97, 140, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base), box-shadow var(--transition-fast);
}

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

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(232, 97, 140, 0.5);
}

/* ============ Lazy load / reveal helpers ============ */
svg[loading="lazy"],
img[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.6s ease;
}

svg[loading="lazy"].is-loaded,
img[loading="lazy"].is-loaded {
  opacity: 1;
}

/* ============ Responsive ============ */
@media (max-width: 1080px) {
  .main-nav a {
    padding: 8px 10px;
    font-size: 0.86rem;
  }

  .site-search input {
    width: 110px;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .hero-slider {
    min-height: 300px;
    order: -1;
  }

  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-legal {
    grid-column: 1 / -1;
  }
}

@media (max-width: 860px) {
  :root {
    --header-height: 64px;
  }

  .header-inner {
    padding: 0 16px;
    gap: 12px;
  }

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: inline-block;
  }

  .mobile-menu {
    display: block;
  }

  .site-search {
    padding-left: 12px;
  }

  .site-search input {
    width: 100px;
  }

  .brand-sub {
    display: none;
  }

  .breadcrumb {
    padding: 14px 16px 0;
  }

  main {
    padding: 0 16px 40px;
  }

  main > section {
    margin: 28px 0;
    padding: 28px 22px;
    border-radius: var(--radius-md);
  }

  .hero {
    margin: 20px 0 28px;
    border-radius: var(--radius-lg);
  }

  .hero-content {
    padding: 28px 24px;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px 8px;
  }

  .anchor-nav {
    top: calc(var(--header-height) + 4px);
    border-radius: var(--radius-md);
  }

  .site-footer {
    padding: 40px 16px 28px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .back-to-top {
    right: 14px;
    bottom: 14px;
    padding: 10px 16px;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 15px;
  }

  .header-tools {
    gap: 6px;
  }

  .site-search {
    display: none;
  }

  .theme-toggle,
  .menu-toggle {
    padding: 7px 12px;
    font-size: 0.78rem;
  }

  .brand-name {
    font-size: 1.02rem;
  }

  .brand-logo svg {
    width: 34px;
    height: 34px;
  }

  .hero-slider {
    min-height: 220px;
  }

  .slider-controls {
    right: 10px;
    bottom: 10px;
  }

  .slider-controls button {
    padding: 6px 12px;
    font-size: 0.72rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    padding: 12px 22px;
  }

  .hero-stats .count {
    font-size: 1.2rem;
  }

  .mobile-menu ul {
    grid-template-columns: 1fr;
  }

  main > section {
    padding: 22px 16px;
  }

  main > section article {
    padding: 18px 16px;
  }

  .faq-list summary {
    padding: 16px 46px 16px 16px;
    font-size: 0.92rem;
  }

  .faq-list details > p {
    padding: 0 16px 18px;
  }

  .back-to-top {
    padding: 9px 14px;
    font-size: 0.78rem;
  }
}

@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;
  }

  main > section {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .anchor-nav,
  .back-to-top,
  .slider-controls,
  .site-search,
  .theme-toggle,
  .menu-toggle {
    display: none !important;
  }

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

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